06-16-2020, 10:35 AM
Similar problem here: I can't use an external monitor. I'm using Debian sid with a 5.7 kernel build following the instructions in kernel build script for latest mainline manjaro kernel.
Kernel: Linux version 5.7.0-0.37-2-pinebookpro-manjaro-kwiboo+
Monitor: NEC EA271Q
dmesg excerpt:
Kernel: Linux version 5.7.0-0.37-2-pinebookpro-manjaro-kwiboo+
Monitor: NEC EA271Q
dmesg excerpt:
Code:
[ 291.513396] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work [rockchipdrm]] Not connected. Disabling cdn
[ 291.714223] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work [rockchipdrm]] Not connected. Disabling cdn
[ 291.762834] typec_displayport port0-partner.0: No compatible pin configuration found:0000 -> 001c, 001c <- 0000
[ 291.948829] usb 7-1: new full-speed USB device number 2 using xhci-hcd
[ 292.098881] usb 7-1: device descriptor read/64, error -71
[ 292.368838] usb 7-1: device descriptor read/64, error -71
[ 292.638791] usb 7-1: new full-speed USB device number 3 using xhci-hcd
[ 292.788819] usb 7-1: device descriptor read/64, error -71
[ 293.058818] usb 7-1: device descriptor read/64, error -71
[ 293.179266] usb usb7-port1: attempt power cycle
[ 293.888776] usb 7-1: new full-speed USB device number 4 using xhci-hcd
[ 293.889485] usb 7-1: Device not responding to setup address.
[ 294.108897] usb 7-1: Device not responding to setup address.
[ 294.338827] usb 7-1: device not accepting address 4, error -71
[ 294.488742] usb 7-1: new full-speed USB device number 5 using xhci-hcd
[ 294.489457] usb 7-1: Device not responding to setup address.
[ 294.708827] usb 7-1: Device not responding to setup address.
[ 294.928699] usb 7-1: device not accepting address 5, error -71
[ 294.929745] usb usb7-port1: unable to enumerate USB device